Wearable retina/iris scan authentication system

ABSTRACT

A wearable retina/iris authentication system includes: a frame; a retina/iris scanner mounted to the frame for capturing images of a retina and/or an iris of a user; a mobile computing device, the mobile computing device including a memory for storing information about the user; a position determining device coupled to the mobile computing device for continuously determining a location of the user and providing the location to the mobile computing device; a display mounted to the frame and coupled to the mobile computing device for displaying information received from the mobile computing device; a database for storing information about one or more of a plurality of retina images and a plurality of iris images for matching with the captured images of one or more of the retina and the iris of the user; and a communication interface for comminuting with external systems remote to the wearable system.

CROSS-REFERENCE TO RELATED APPLICATIONS

This Patent Application claims the benefits of U.S. Provisional PatentApplication Ser. No. 62/110,408, filed on Jan. 30, 2015 and entitled“Wearable Retina And Iris Scan For Authentication,” the entire contentsof which are hereby expressly incorporated by reference.

FIELD OF THE INVENTION

The disclosed invention relates generally to authentication systems; andmore particularly to a wearable retina/iris authentication system with adisplay.

BACKGROUND

Iris scan recognition is an automated method of biometric identificationthat uses mathematical pattern-recognition techniques on images of theiris of an individual's eye. The complex random patterns of an eye irisare unique, stable, and can be seen from some distance. Iris recognitionuses (video) camera technology with subtle near infrared illumination toobtain images of the visible details of the iris. Typically, digitaltemplates encoded from these patterns by mathematical and statisticalalgorithms allow the identification of an individual. A key advantage ofiris recognition, besides its speed of matching and its extremeresistance to false matches, is the stability of the iris as an internaland protected, yet externally visible organ of the eye.

A retinal scan recognition is a biometric technique that uses the uniquepatterns on a person's retina blood vessels for identification orauthentication of that person. A retinal scan is performed by casting anunperceived beam of low-energy infrared light into a person's eye as theperson looks through a retina scanner eyepiece. This beam of lighttraces a standardized path on the retina. The amount of reflection ofthis beam of light varies during the scan since retinal blood vesselsabsorb light more readily than the surrounding tissue. The pattern ofvariations of the reflected light is digitized and stored in a database.

In both iris and retina recognitions, databases of enrolledtemplates/patterns are searched to match the acquired iris or retinainformation with the stored information. However, iris/retina scanningis limited to portal or bulky systems, typically mounted on a wall orheavy equipment. Portal as used here means an area such as a building, aroom, a city block or a camp area, or a vehicle, such as a car, a bus, atruck, an aircraft or a ship, or similar structures. Moreover, typicalauthentication methods, including iris/retina scanning, arepoint-in-time events. That is, once the authentication occurs, there isno further verification or authentication. For example, when access to arestricted area is obtained by door lock equipped with iris/retinascanning, the person enters the restricted area without any furtherauthentication/scanning.

Furthermore, in a typical meeting or government debriefing attended byseveral people, each with different access or classification levels toconfidential information, the information displayed to the attendees isuniform and does not distinguish the individuals' different access orclassification levels.

A head-mounted display (HMD) is a device used in some modernapplications, for example by pilots of combat aircraft, simulation ortraining of various military and commercial personnel or virtual realitygaming. HMDs project information on a user's visor or reticle to allowthe user to obtain situation awareness and/or cue weapons systems to thedirection his head is pointing. More modern HMDs include micro-displaysalong with a LED illuminator to generate the displayed image, includingvideo images.

However, all the existing iris and retina authentications arepoint-in-time events. That is, once the authentication occurs, there isno other recurrence or verification of that authentication.Historically, iris/retinal scanning is limited to portal or bulkysystems. Moreover, iris/retinal scanning has been limited to bulkysystems that are usually wall mounted to provide access to restrictedareas.

SUMMARY

In some embodiments, the disclosed invention is a wearable retina/irisauthentication system. The system includes: a frame mountable on a headof a user; a retina/iris scanner mounted to the frame for capturingimages of one or more of a retina and an iris of the user; a mobilecomputing device wearable by the user and electrically coupled to theretina/iris scanner, the mobile computing device including a memory forstoring information about the user; a position determining devicecoupled to the mobile computing device for continuously determining alocation of the user and providing the location to the mobile computingdevice; a display mounted to the frame and coupled to the mobilecomputing device for displaying information received from the mobilecomputing device; a database for storing information about one or moreof a plurality of retina images and a plurality of iris images formatching with the captured images of one or more of the retina and theiris of the user; and a communication interface for comminuting withexternal systems remote to the wearable system. The mobile computingdevice continuously authenticates the user to access certain informationor certain portal based on the captured images of one or more of theretina and the iris of the user and the stored information in thedatabase at an authentication frequency, and the authenticationfrequency is dependent on the stored information about the user, thelocation of the user, a sensitivity of the certain information or a typeof the certain portal.

In some embodiments, the disclosed invention is a wearable retina/irisauthentication system. The system includes: a helmet wearable on a headof a user; a retina/iris scanner mounted to the helmet for capturingimages of one or more of a retina and an iris of the user; a mobilecomputing device wearable by the user and electrically coupled to theretina/iris scanner, the mobile computing device including a memory forstoring information about the user; a display mounted to the helmet andcoupled to the mobile computing device for displaying informationreceived from the mobile computing device; a database for storinginformation about one or more of a plurality of retina images and aplurality of iris images for matching with the captured images of one ormore of the retina and the iris of the user; and a wirelesscommunication interface for comminuting with external systems remote tothe wearable system. The mobile computing device continuouslyauthenticates the user to access certain information or certain portalbased on the captured images of one or more of the retina and the irisof the user and the stored information in the database at anauthentication frequency, the authentication frequency is dependent onthe stored information about the user and a sensitivity of the certaininformation or a type of the certain portal, and upon a positiveauthentication of the user, the wireless communication interfacecommunicates with an external system to grant the user access to saidcertain information or said certain portal.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the disclosedinvention will become better understood with regard to the followingdescription, appended claims, and accompanying drawings.

FIG. 1A depicts a wearable retina and/or irisidentification/authentication device, according to some embodiments ofthe disclosed invention.

FIG. 1B shows a wearable retina and/or irisidentification/authentication device mounted on a helmet, according tosome embodiments of the disclosed invention.

FIG. 2 is a simplified block diagram of a wearable retina and/or irisidentification/authentication system and its external interface,according to some embodiments of the disclosed invention.

FIG. 3 is a simplified process flow executed on a mobile computingdevice of a wearable retina and/or iris identification/authenticationsystem, according to some embodiments of the disclosed invention.

DETAILED DESCRIPTION

In some embodiments, the disclosed invention adds retina and/or irisauthentication to ahead-mounted display (HMD). HMDs are increasinglyimportant in a variety of different applications, for example, soldiersystems, some medical procedures, navigation systems, simulation of avariety of complex systems or situations, handing of highly hazardousmaterial, and the like, from training to active operations. Theretina/iris scanning on the HMD identifies and authenticates the userand adds control over what is being seen on the HMD. Also, since the HMDis tied to the rest of the wearers system, it can act as a control toother (external) systems that interact with the wearer's system. Forexample, if the person identified/authenticated doesn't have the rightaccess or privilege, the corresponding external systems will not startup or provide access therein. This way, the disclosed invention ensuresidentification and/or authentication for as long as the user is wearingthe HMD.

In some embodiments, the disclosed invention controls portal access to alocation, for example, a room or building of individuals with differentclearance levels or information access privileges. Based on theprivileges of each of the authenticated persons, the HMD showsinformation cleared for a particular authenticated person, while stillallowing other attendees in the location to participate concurrently ina briefing or meeting, based on their individual privileges or clearancelevels. Through a wired or wireless connection to the wearer's system,access to other equipment, such as vehicles, aircrafts, specialmachinery or weaponry, can be granted through the HMD as well.

FIG. 1A depicts a wearable retina and/or irisidentification/authentication system 100, according to some embodimentsof the disclosed invention. As shown, a wearable frame 108, such as aneye glasses, a helmet or a goggle frame, includes a camera or scannermounted thereon to scan or take an image of the retina and/or iris ofthe user wearing the frame 108, and optionally a pico-projector 102mounted at its front to scan an image received from a mobile computingdevice 104 that the user is carrying into the (eyes) of the use so thatthe image may be displayed onto the retina. In some embodiments, theimages are displayed on a reflective glass of the glasses frame to actas a display device. At the same time, the camera/scanner is capable ofscanning the retina and/or iris of the wearer to capture its image andtransmit the capture image to the mobile computer 104, via a wired orwireless connection. Mobile computing device 104 includes a wired and/orwireless interface 106 for communicating with external systems. Themobile computing device 104 may be a smart phone, a customized mobilecomputer, a personal digital assistant (PDA), a handheld PC, and thelike.

In some embodiments, a position determining device, such as a globalpositioning system (GPS) may be included in the mobile computing device104 or in the glasses frame 108 for obtaining and transmitting locationinformation of the user. The location information and the authenticateduser information may then be used to provide different access levels toinformation or equipment. For example, if the user is in or in thevicinity of a highly restricted area, his/her access to certaininformation and certain physical areas may be limited to a certaindegree. As another example, a repair facility may have open areas withequipment that is viewable to numerous individuals. The wearable displaycan provide details of the viewable equipment (for example previous useenvironments). The authenticated individual can then see thisinformation on his/her display while unauthenticated individuals wouldnot. The information would be determined by the authentication andcomparison to a database providing user and location permissions.

In some embodiments, wearable retina and/or irisidentification/authentication system 100 includes a pico-projector(shown as a part of camera 102) that emits low intensity light into theretinal of the wearer and thus displays images directly into the eyes ofthe wearer. This way, the need for an actual display device (e.g., theglass) is eliminated. In some embodiments, the pico-projector (display),which emits low intensity light into the eye is combined with the eyescanner which scans the eye in a single device/component.

The wearable retina and/or iris identification/authentication system 100may also include image processing software and iris and/or retinaauthentication and identification software that processes the capturedimages of the iris/retina, processes the images and optionally, based onthe processed images identifies and authenticates the user. In someembodiments, the more computationally intensive processing of the irisor retina images may be performed by a more appropriate externalcomputing system. The images are then matched to a database of images toidentify the user. Once the user is identified, additionalauthentication or verification processes may be performed to furtherauthenticate the user. For example, another authentication based on thevoice of the user may be performed depending on other factors describedbelow. The rights and privileges of the identified user may then beaccessed from a database to determine the “access rights/privileges” ofthe user.

FIG. 1B shows a wearable retina and/or irisidentification/authentication device mounted on a helmet, according tosome embodiments of the disclosed invention. As shown, a scanner/camerais mounted on the right side of the helmet. In this case, thescanner/camera is hardwired to a mobile computing device (not shown),however, this connection may be wireless. The mobile computing deviceincludes a wired and/or wireless interface to external devices, asexplained above. The helmet also includes a visor that may be used todisplay information from the scanner/camera. The helmet also optionallyincludes a microphone that the user can speak thereon. In someembodiments, the voce of the user (though the microphone) may only betransmitted (e.g., broadcast) to certain group of people or certainlocations, depending on the authentication of the user and hisprivileges.

FIG. 2 shows a simplified block diagram of a wearable retina and/or irisidentification/authentication system and its external interface,according to some embodiments of the disclosed invention. As shown, thesystem includes a Helmet Mounted Display (HMD) 202, such as a flip downoptical element, for displaying information; a secure audio device 204,such as simple head phones and microphone, for secure audio content; anda retina/iris scanner 206 for authentication of the user based on aretina and/or iris scan. The display may be a flip down optical element,a liquid crystal display (LCD), a goggle or a pico-display. In someembodiments, the retina/iris scanner may be a camera focused to theretina and/or iris of the user. In some embodiments, the secure audiodevice may be used to further authenticate the user based on her voiceresulting in a more extensive authentication level depending ondifferent applications.

The wearable retina and/or iris identification/authentication systemfurther includes a database 208 for storing security levels, andiris/retina profiles. The database records for each individual describesthe authority level of the authenticated individual, and may alsoinclude the identity of the individual, his/her preferences andinterests, patterns of behavior, health related information, physicalattributes and other relevant information about the individuals. Thedatabase 208 may be stored locally on a computing device 210, orremotely on a server, which is wirelessly accessible by the computingdevice 210.

The computing device 210 drives a communication interface 214 tointerface to internal modules of the system and external systems 218,such as other computers, workstations, portals, vehicles, databases andthe Internet. The communication interface 214 may be a wired, wirelessinterface or a combination thereof. For example, the communicationinterface 214 may be wired interface for all or some of the internalcomponents of the system and wireless interface to communicate withexternal systems. A central power device 212 may include a battery forproviding power to the system. Central power device 212 may also includean interface for being charged by an external power charging deviceand/or charging an external device. The communications between thewearable retina and/or iris identification/authentication system and theexternal systems 218 may be secured, for example, encrypted by anencryption module 220, which may be implemented in hardware, software ora combination thereof.

In some embodiments, the wearable identification/authentication systemof the disclosed invention performs continuousidentification/authentication depending on the application, the userand/or the location of the user. The frequency of the continuousauthentication for a given application may also change based on similarfactors. For instance, in the case of a pilot using the disclosedinvention, once the aircraft is in operation, authentication may end orperformed much less frequently, but for a workstation containingsensitive information, authentication may be more frequent, for example,every couple of minutes or every few seconds.

FIG. 3 is a simplified process flow executed on a mobile computingdevice of a wearable retina and/or iris identification/authenticationsystem, according to some embodiments of the disclosed invention. Asshown in block 302, one or more images of a retina and/or iris of theuser, captured by a scanner, is received by the mobile computing deviceof the disclosed invention. The mobile computing device then processesthe captured image(s), in block 304. For example, the mobile computingdevice may translate captured images of the iris/retina to the imageprofiles stored in a database to be matched with the captured images tocorrect for positioning of the scanner with respect to the users eye andfor potential deviations in the position of the scanner. The mobilecomputing device may also create a data structure or a template of thecaptured image with unique features of the retina and/or iris tomatching with the stored data structures (e.g., profiles and templates)in the database. The mobile computing device may further perform someconventional image processing, such as image smoothing, featureextractions, image tiling, and the like.

In block 306, the (processed) captured image is matched with one or moreof the stored image profiles. One skilled in the art would recognizethat a 100% matching of the captured image to the stored image profilesmay not be feasible and thus the captured image is matched to a certaindegree to one or more of the stored images, in some embodiments. In someembodiments, a list of potential candidates may be generated as theresult of the matching process. In block 308, the system then determinesthe best candidate and authenticates/identifies the user to accesscertain information r access to certain portal, based on the matchdegree and/or the information about the user, such as her historicalbehavior patterns, his location and the degree of accuracy required bythe application for that user. In block 310, the mobile computing deviceobtains location information of the user, for example, from a GPSdevice.

If the authentication is a continuous authentication at a certainfrequency, in block 312, the mobile computing device causes the scannerto set its rate of image capturing, and sets the authenticationfrequency, depending on the stored information about the user, thelocation of the user, the sensitivity (e.g., confidentiality level) ofthe certain information or the type of the certain portal. Optionally,the mobile computing device may also extend the scope of theauthentication, in block 314. For example, other forms of authenticationsuch as voice authentication may be performed based on the mobilecomputing device.

Additionally, the system of the disclosed invention may monitor theactivity of the user and if it is determined that the user has not beenactive for a predetermined period of time (e.g., set as a systemparameter, depending on the user and/or the application), the anotherauthentication of the user is automatically performed. For example, if auser wearing the wearable identification/authentication system of thedisclosed invention has not used a computer, database or an equipmentfor a predetermined period of time, the iris/retina verification isautomatically performed on the user to re-authenticate the user.

The frequency of the user authenticated may set by a systemadministrator or automatically set by the system, depending on differentfactors. The factors that determined the extend and frequency ofauthentication include one or more of the application (for example, whatarea or information the user is attempting to access or is accessing),the sensitivity/confidentiality level of the information or the area,the location of the user (e.g., determined by a GPS), the surrounding orenvironment of where the user is (for example, whether the user issurrounded by several other people in a conference room, whether theuser is inside or outside of an enclosure such as a building or vehicle,whether and to what extent the building or the vehicle is physicallysecure, the size of the building and the like), behavior pattern of theuser (such as number of and/or the time between prior accesses to anequipment of information), the identity and access privileges orauthority levels of the user, or even the fatigue level of the user. Allor some of these factors may automatically be determined by the systemas described below.

For example, the sensitivity of the information or the area that theuser is attempting to access or is already accessing may be determinedfrom information from a (remote or local) database or the bit contentsof data packets. The location of the user may be determined by alocation determining system, such as a GPS and information about thesurrounding or environment of the determined area may be obtained fromvarious geospatial or map databases. Similarly, the identity, accessprivileges and behavior pattern of the user may be obtained from a userprofile file stored remotely or locally. Information about the type andphysical security arrangement for a building, vehicle or equipment mayalso be stored in a (remote or local) database and access by the systemto determine the related factors for frequency and extent of theauthentication.

For instance, when the user is within a highly restricted area, such assensitive military, security or government buildings or vehicles,continuous authentication is performed more frequently and moreextensively. For example, continuous authentication may be performedevery 10 seconds and performed both on the iris and on the retina (andoptionally on the voice) of the user, in such circumstances. Similarly,continuous authentication is performed more frequently where the user islocated in a room or area with several other people (that maypotentially use the user's system without authorization) that a remotearea such as a desert where no other person is present. Likewise, thefrequency of continuous authentication may be higher for smaller vehiclethan the larger vehicle since there a higher likelihood that the userspend less time in a small vehicle than a larger vehicle, such as a shipor a tank. Conversely, the frequency of continuous authentication may behigher for larger areas/buildings than the smaller areas/buildings orlocation since there a lower likelihood that the user have access tounauthorized information or location in a smaller area (e.g., aconference or equipment room) that a larger area, such as Pentagonbuilding.

The behavior pattern of the user, for example, how often and for howlong the user tends to wear the system, how many time has a particularuser have (or tried to unsuccessfully) accessed the information, thebuilding or the vehicle may be used to determine the frequency andextent of continuous authentication. For example, if the user has beenin a restricted building every morning for the last month, then thefrequency and extent of continuous authentication is lower than if it isthe user's first time trying to obtain access. Moreover, if the user hasunsuccessfully tried several times to obtain access, then the frequencyand extent of continuous authentication would be higher. Similarly, ifthe number of false authentications exceeds a predetermined numberbefore authentication is granted, then the frequency of the continuousauthentication is increased, for example, for at least a period of timeafter the grant. Also, if false authentications are greater than acertain level (e.g., 10% of image readings), then the authentication isdenied and the user has to wait for a certain cooling off period.Likewise, if the number of false authentications in a row is greaterthan a certain number, the system may shut down for a certain coolingoff period. For example, the system is shut down for a given amount oftime until the user is authenticated for or within a given amount oftime.

Mounting the camera to a fixed location with respect to the eye of theuser while still being able to authenticate as the eye moves in relationto the camera may be accomplished in several ways, according toembodiments of the disclosed invention. For example, differentperspectives of the iris to the camera are recorded in a memory of thesystem or calculated by the computing device and the path forward isdetermined in initial testing to determine the number of perspective ofthe iris/retina that would need to be stored in the database.

In some embodiments, a process, executed by the computing device,re-orients the captured image of the retina/iris to a stored imageprofile that is to be matched with the captured image. In someembodiments, the system stores multiple (captured) images of theretina/iris so that deviations in the orientation of the camera to theeye can be accounted for. For example, an image of the iris/retina, istaken from all or several possible orientations of the camera to theeye. Therefore, the system authenticates a given user by comparing aseries of images of all or several possible perspectives, in thedatabase, and not just a single image.

In some embodiments, the wearable identification/authentication systemof the disclosed invention uses the retina and/or iris scanninginformation to gather biometric data about the user. For example, thebiometric data gathered by the scanner may be used to determine thelevel of fatigue of the user. For example, fatigue of the user can beattributed based on number of blinks per second, dilation of the eye,and/or drifting of the eye. Since the scanner is scanning (taking avideo of) the eye, these types of biometric indicators may be recordedas well and used to determine or estimate the fatigue level of the user.This fatigue information can then be used to determine whether the useris capable of a given activity. This could be a physical activity ormental activity since a fatigued user would potentially have reducedcomprehension and/or agility. In the case of vehicle operation,detection of a fatigue could activate a warning (e.g., sound, light,vibration and a combination thereof) that the user needs to stopoperating the vehicle.

It will be recognized by those skilled in the related fields thatvarious modifications may be made to the illustrated and otherembodiments of the invention described above, without departing from thebroad inventive step thereof. It will be understood therefore that theinvention is not limited to the particular embodiments or arrangementsdisclosed, but is rather intended to cover any changes, adaptations ormodifications which are within the scope and spirit of the invention asdefined by the appended claims.

What is claimed is:
 1. A wearable retina/iris authentication systemcomprising: a frame mountable on a head of a user; a retina/iris scannermounted to the frame for capturing images of one or more of a retina andan iris of the user; a mobile computing device wearable by the user andelectrically coupled to the retina/iris scanner, the mobile computingdevice including a memory for storing information about the user; aposition determining device coupled to the mobile computing device forcontinuously determining a location of the user and providing thelocation to the mobile computing device; a display mounted to the frameand coupled to the mobile computing device for displaying informationreceived from the mobile computing device; a database for storinginformation about one or more of a plurality of retina images and aplurality of iris images for matching with the captured images of one ormore of the retina and the iris of the user and information about accessprivilege levels of a plurality of users; and a communication interfacefor comminuting with external systems remote to the wearable system,wherein the mobile computing device continuously authenticates the userto access certain information or certain portal based on the capturedimages of one or more of the retina and the iris of the user and thestored information in the database at an authentication frequency,wherein the authentication frequency is dependent on a sensitivity ofthe certain information or a type of the certain portal being accessedby the user, and wherein when the user is authenticated by the mobiledevice, the access privilege level of the user is determined from thedatabase, a remote database remote from the user is accessed based onthe user access privilege level, and limited information is retrievedfrom the remote database based on the user access privilege level anddisplayed in the display.
 2. The wearable retina/iris authenticationsystem of claim 1, wherein the frame is one or more of the groupconsisting of a helmet, an eye glasses and a goggle.
 3. The wearableretina/iris authentication system of claim 1, wherein the display is oneor more of the group consisting of a flip down optical element, a liquidcrystal display (LCD), a goggle and a pico-display.
 4. The wearableretina/iris authentication system of claim 1, wherein the communicationinterface is one or more of the group consisting of a wired interfaceand a wireless interface.
 5. The wearable retina/iris authenticationsystem of claim 1, wherein the stored information about the user includeone or more of a behavior pattern of the user, identity and accessprivileges of the user, and a fatigue level of the user.
 6. The wearableretina/iris authentication system of claim 1, wherein the retina/irisscanner obtains biometric data about the user and the mobile computingdevice utilizes said biometric data to determine a level of fatigue ofthe user.
 7. The wearable retina/iris authentication system of claim 1,wherein the database is remote from the user and accessible via thecommunication interface.
 8. The wearable retina/iris authenticationsystem of claim 1, wherein the mobile computing device increases a levelof the authentication, based on the stored information about the user,the location of the user, the sensitivity of the certain information orthe type of the certain portal.
 9. The wearable retina/irisauthentication system of claim 1, wherein the mobile computing deviceincreases a level of the authentication by performing a voiceauthentication of the user, based on the stored information about theuser, the location of the user, the sensitivity of the certaininformation or the type of the certain portal.
 10. The wearableretina/iris authentication system of claim 1, wherein the certain portalis a vehicle and wherein the mobile computing device increases theauthentication frequency for a smaller vehicle and decreases theauthentication frequency for a larger vehicle.
 11. The wearableretina/iris authentication system of claim 1, wherein the certain portalis an area, and wherein the mobile computing device decreases theauthentication frequency for a smaller area and increases theauthentication frequency for a larger area.
 12. A wearable retina/irisauthentication system comprising: a helmet wearable on a head of a user;a retina/iris scanner mounted to the helmet for capturing images of oneor more of a retina and an iris of the user; a mobile computing devicewearable by the user and electrically coupled to the retina/irisscanner, the mobile computing device including a memory for storinginformation about the user; a display mounted to the helmet and coupledto the mobile computing device for displaying information received fromthe mobile computing device; a database for storing information aboutone or more of a plurality of retina images and a plurality of irisimages for matching with the captured images of one or more of theretina and the iris of the user; and a wireless communication interfacefor comminuting with external systems remote to the wearable system,wherein the mobile computing device continuously authenticates the userto be able to operate an equipment based on the captured images of oneor more of the retina and the iris of the user and the storedinformation in the database at an authentication frequency, wherein theauthentication frequency is dependent on a type of the equipment beingaccessed by the user, wherein upon a positive authentication of theuser, the wireless communication interface communicates with an externalsystem to grant the user access to said equipment, and wherein when theuser starts operating the equipment, the authentication frequency isreduced.
 13. The wearable retina/iris authentication system of claim 12,wherein the stored information about the user include one or more of abehavior pattern of the user, identity and access privileges of theuser, and a fatigue level of the user.
 14. The wearable retina/irisauthentication system of claim 12, wherein the retina/iris scannerobtains biometric data about the user and the mobile computing deviceutilizes said biometric data to determine a level of fatigue of theuser.
 15. The wearable retina/iris authentication system of claim 12,wherein the mobile computing device determines access privilege for theuser based on said authentication of the user, obtains information fromexternal systems via the communication interface and displays saidinformation on the display, according to said determined accessprivilege for the user.
 16. The wearable retina/iris authenticationsystem of claim 1, wherein the database is remote from the user andaccessible via the communication interface.
 17. The wearable retina/irisauthentication system of claim 12, wherein the mobile computing deviceincreases a level of the authentication, based on the stored informationabout the user, the location of the user, the sensitivity of the certaininformation or the type of the certain portal.
 18. The wearableretina/iris authentication system of claim 12, wherein the mobilecomputing device increases a level of the authentication by performing avoice authentication of the user, based on the stored information aboutthe user, the location of the user, the sensitivity of the certaininformation or the type of the certain portal.
 19. The wearableretina/iris authentication system of claim 12, wherein the certainportal is a vehicle and wherein the mobile computing device increasesthe authentication frequency for a smaller vehicle and decreases theauthentication frequency for a larger vehicle.